Thanks guys. I am a newbie at the total rebuild game. It is frustrating to think that unless you can completly eliminate any air spaces you will have some condensation (leaks notwithstanding) in your walls. Even with vapor barriers your studs and joists will have some contact with the moisture in your glass batt insulation.
Do to poor inspection (pre-purchase) and lack of knowledge, We bought a TT that looked great, ( its only a small wrinkle in the ceiling and wall!!!)
The up side is that I have pretty good building skills, and a single minded, persistant do it right attitude. so we are getting close to having a "like new" vintage trailer. I am enjoying the process and learning a lot. Thanks again for all the good advice and tips. D. OZ